1FMRIB Centre, University of Oxford, Oxford, United Kingdom, 2Department of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
In this study, we conducted
thermal simulations using EM simulation software and compared these to proton
resonance frequency (PRF) thermometry using an ultra-high-field MR phantom. RF
heating was measured in the magnet environment using a PRF-based 3D GRE on a 8-channel
pTx coil. Three types of simulation method were assessed and compared with
experimental data. Amongst the three simulation methods the realistic
capacitance simulation was closest to the experimental measurement. In
conclusion, PRF RF heating measurements with real fiber optic temperature
changes can be used to assess and validate different types of RF simulation.
